Fibre glassing question..Fabby ??

[dogwood]

Hi.
Im about to modify my Triton scuttle. (Widen it)
I have made up the "Splash" molding as Mark sudgested.
Question is,
Do I need to use Gelcoat before the matting or will just the resin be OK?
I intend to spray it anyway so finish is not an issue.
I have some very old gelcoat in my garage.(25 years:eek: )
Does it go off?
Sorry if these are dumb questions, but what I know about fibreglassing could be put on a postage stamp, and still have room for the queens head....:rolleyes:

David
I

[fabbyglass]

Yes mate it goes off, resin and gel coat have a shelf life of a year i think it is if stored in right conditions.
You might be ok just using matt and resin as no doubt it will need a skim of filler to get the levels right as not dead flat on the top...;)

[dogwood]

Cheers mate

So you think after 25 years it might be past it's best then..:D
I'll give it a go over the weekend, see how I get on..:rolleyes:

Fingers crossed for me, hu ?:D

David

[fabbyglass]

Cut the matt to fit into gap, nice sharp edge for first layer then 2 over the top overlaping by 4 " or so either side...dont get it too wet and not too dry;)

[dogwood]

.dont get it too wet and not too dry;)

So sort of in be tweeny......

Cheers for the advice, greatly appreciated.
Coz I know nuffffin about fibreglassin.

David

[fabbyglass]

Yeah something like that but you will know when you do it, have a look on the underside(if i did it right that is...:o ) how it looks and aim for that finish..although it's cured it kinda looks wet/shiney well ish..Too much resin and it will get hot and be brittle not enough and it will fall apart.

[RAYLEE29]

just by coincidence ive been doing exactly that to a westfield scuttle that i picked up before i knew it wouldnt fit and a nose cone that dont fit either
both bought before i started my chassis and before i came here and learnt my mistake
if it works itll be good if not its only time and a little bit of resin etc
Ray:)

[dogwood]

It's not even FUNNY!!!:eek:

Do you think I did something wrong with my splash mould...?:rolleyes:
Said I don't know nuffin bout fibreglassin...

http://i129.photobucket.com/albums/p212/muddypaws4x4/locojpeg015.jpg

http://i129.photobucket.com/albums/p212/muddypaws4x4/locojpeg014.jpg

David

[RAYLEE29]

OOPS! did you wax the panel before you applied that?
or is it delaminated through not being enough resin or did the resin go off before you applied it?
Ray:confused:

[fabbyglass]

I would say you never waxed it. It sticks like shit to a blanket when you don't want it to but when you do it will fall off unless you prepare the surface...good fun aint it:o

If taking a splash mould then wax 3 or 4 times and pva if not sure on the surface.

If repairing then badger the surface with gritty paper to key it then wipe with acetone to remove the wax present in resin/gel coat.

[dogwood]

Yea, alright so I forgot to wax it !!!:rolleyes:
I knew last night, when I see the wax sitting on the table.
I was just hoping it would be alright...


Second time round it's all OK.

http://i129.photobucket.com/albums/p212/muddypaws4x4/locojpeg017.jpg
http://i129.photobucket.com/albums/p212/muddypaws4x4/locojpeg016.jpg

Now comes the interesting bit, doing the modd...:D

David

[londonsean69]

May I ask, why are you widening it??

Is it a special extra wide chassis?

Cheers

Sean

[dogwood]

May I ask, why are you widening it??

Sean

NO.....:eek: :D

[fabbyglass]

Dude,
Cut the scuttle in the middle then clamp it to your chassis, place yer splash mould on top and by whatever means you can clamp the two halves together then carefully flip it on its side and glass it up....jd as they say. Once cured pull splash mould off and have a go with some filler...;)

[dogwood]

Sounds like a plan..
Cheers for all the advice.

I'll let you know how it went...


David

Sean you got a PM

[fabbyglass]

It's not rocket science although it can go bang if you get yer fag too close:o

[RAYLEE29]

youll get there in the end and you prob wont make the same mistake again have fun,
my first bit didnt go to plan but the second try was much better
Ray

[fabbyglass]

It's fun turning runny stuff and some weird material into solid things that folk then turn into cars, nice to see the finished thing too.:)

[VladD]

OK, question from a newbie/thicky. What is a splash mould?

[dogwood]

Probably not the right person to answer this, but

If you look at my pics, that is what I understand as a splash mould.
I put a couple of layers of glass over the scuttle to act as a mould when I widen it, so it still matches to the original...


David...


Mind you I could be wrong...:eek: :D

[londonsean69]

Probably not the right person to answer this, but

If you look at my pics, that is what I understand as a splash mould.
I put a couple of layers of glass over the scuttle to act as a mould when I widen it, so it still matches to the original...


David...


Mind you I could be wrong...:eek: :D

That's exactly what I understand it to be also.

When widening a part, taking a splash mould gives you something to mould against once the item has been split, enabling you to keep the shape and contours

[RAYLEE29]

some pics of my unfinished widened scuttle and nose cone
still lots to do :)

[Bonzo]

Ah that's how it is done :)

Nice work again Ray :cool: :)

[fabbyglass]

Splash mould is a word used for a "quick mould" to capture a shape. Usually not that thick, just thick enough to keep the shape etc.

Just be careful with the stuff and ideally wear eye protection as it's evil if you get it in your eyes, can safely say it burns like you won't believe and scares the bejeesus out of you as you just know it's curing and will cure quicker with body heat...:eek:

[londonsean69]

Just be careful with the stuff and ideally wear eye protection as it's evil if you get it in your eyes, can safely say it burns like you won't believe and scares the bejeesus out of you as you just know it's curing and will cure quicker with body heat...:eek:

I dread to think how you know that;)

My ex flatmate in Lanzarote was a supply teacher over there, and during the summer the supply teachers were employed to paint the school.

She got a drip of gloss on her eyeball and decided white spirit would do the trick.....

How she did not go blind I don't know

[jasongray5]

I still have the hoody that I wore when I re-GRP'd my boat, bloody stuff wont budge no matter how hot, or how many times mother washes it...!

White spirit to the eye, now thats propper hardcore...

[RAYLEE29]

I put ear drops in my eye yesterday, ive had petrol weld spatter grinding sparks swarf oil grease trichlorethane 111 in them but ear drops probably the most painfull
thing is it was hurting already thats why I reached for the eye drops but got the wrong bottle
optrex and otex look nearly the same till you realise
Ray

[Bonzo]

OMG Ray :eek:

I think you had best be off to spec savers :D :o

Or is it too late for that !!??

Hope you are none the worse for it :)

[RAYLEE29]

Well theres certainly no ear wax in it now lol
and its fine now thanks
Ray